Kongnamulguk is a refreshing Korean soup primarily based on soybean sprouts, some minced garlic and scallions which is cheap and easy to make. It is considered to be light and healthy, containing full of vitamin C and low in calorie content. Very much similar to bookuhguk, this soup can be a great ailment for hangovers as well as colds. For spicy food lovers, splash of red pepper flakes (gochugaru) can be added to add some kick to the flavor.